ok, Im going to college soon and I want to know what you guys think would be better..... a 15" powerbook to use as desktop replacement, or a 12" powerbook with an external moniter? I will do some occasional gaming so the video card difference is an issue, but Im not all that great at telling the diff btwn that type of stuff unless it makes it run slow. I just might play some first person shooters like call of duty. I assume most of you will say the 12" powerbook.... so will the graphics hurt me?